var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
require('./db');
var jwt = require('express-jwt');	// 引入jwt模块
var { secretKey, unless, algorithms } = require('./utils/token');

var cinemasRouter = require('./routes/cinemas');
var filmAndCinemasRouter = require('./routes/filmAndCinemas');
var filmsRouter = require('./routes/films');


var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use(jwt({ secret: secretKey, algorithms }).unless(unless));
app.use('/', indexRouter);
app.use('/users', usersRouter);

app.use('/cinemas', cinemasRouter);
app.use('/filmAndCinemas', filmAndCinemasRouter);
app.use('/films', filmsRouter);


// catch 404 and forward to error handler
app.use(function (req, res, next) {
  next(createError(404));
});

// error handler
app.use(function (err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};
  if (err.name === "UnauthorizedError") {
    res.status(401).send("invalid token")
  } else {
    // render the error page
    res.status(err.status || 500);
    console.log("error:", err.message);
    res.render('error');
  }
});

module.exports = app;
